OneShot, and presumably other MKXP-based RPG Maker games are not detected

### SteamDB link to the game

https://steamdb.info/app/420530
OneShot is an RPG Maker XP game that uses a fork of the custom open-source RGSS interpreter 'MKXP' for performance, cross-platform support, and interfacing with native libraries.
For information, their fork is located here https://github.com/elizagamedev/mkxp-oneshot


### What should it be detected as?

RPG Maker